Flushing apparatus.



1. BENTON. rLusHING APPARATUS.

APPLICATION FILED NOV. Il. I914.

Patented Aug. 10, 1915.

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Jorrit-BENTON, or rnrn'asorr, NEW JERSEY.

rLUsnrNe ArrARA'rUs.

@riginal application filed March 6, 1913, Serial No. 752,323.

Serial NoK 871,4?0.

To all whom t may concern:

Be it known that I, JOI-IN DENTON, a citi- Zen of the United States, residing at Paterson, in the county of Passaic and State of N ew Jersey, have invented certain new and useful Improvements in Flushing Apparatus, of which the following is a specification.

This invention relates to Vliushing apparatus of the type inV which means is employed for mechanically lifting the body of water in the short leg of the siphcn over the bend and into the long leg of the siphon for the purpose of starting the siphon action. lNhere the fall of the long leg of a siphon is short, as in the use of so-called low-down tanks, it is necessary that the working movement of the lifting means should accomplish as complete an exhaustion of the short leg as possible; that at the end of the lifting stroke said means should be adapted to allow the water in the tank to pass through the siphon with as little opposition as possible; and that inally, when the lifting means returns to the rest position it should at once assume the condition rendering it fully effective for the next siphon starting action. Due to the absence of one or more of these qualities iushing apparatus of this character heretofore devised have been unreliable and fremientlyY operate with at best but a sluggish siphoning' action.

My object is to provide a lifting means for siphon iiushing apparatus of the kind referred to which shall be adapted to eX- haustively displace the water from the short leg of the Siphon on the working stroke, thereupon allow perfectly unobstructed passage of the water in the tank through the siphon, and finally assume automatically that state or condition which renders it effective to perform properly the next lifting operation.

The present application is a division of that upon which issued to me Letters Patent No. 1,109,971, dated September 8th,1914.-.

In the accompanying drawings, Figure 1 is a side elevation, partly broken away, of the improved flushing apparatus; Fig. 2 is a vertical sectional view on the line g/-y of Fig. 3; and, Fig. 3 is a horizontal sectional view through the short leg of the siphon and the lifting means.

As in my Patents Nos. 768,215 and 833,681

the siphon includes with the long leg a,

Specification of Letters Fatent.

Patented Au". 10, 14915.

Divided and this application filed November penetrating and suitably secured in the bottom wall of the tank Z), a short leg c which is appreciably greater in diameter than the leg o and in the present instance consists of a cylinder which is screwed into the neck or bend-member Cl of the siphon, in turn screwed upon the upper end ofthe leg a. rlChe part of the member cl into which the cylinder c is screwed is a relatively offset portion CZ of member (l forming a top wall or cap for the cylinder c of such form that the longitudinal axis of the cylinder passes through the cap exteriorly of the body part of the member CZ. AXially of the cylinder there is arranged in the cap d a downwardly depending tube Through this tube extends the stem g of the lifting kmeans also including a piston V/i attached to the lower end of the stem and to be described in detail. f

z' is a handle (in this case a short lever fulcrumed in a bracket j attached to the tank) for imparting the upward or starting stroke to the water-lifting means. For imparting motion from handle to the lifting means I may employ the rod o, and levers fn, and. u fulcrumed in bracket 7c, these parts being arranged and operating the same as in my Patent No. 1,109,971A above referred to, to which reference may be had for a more particular description.

Thepiston 71, is constructed as follows: u is a disk which is fixed on the lower reduced end of the stem g by the nut r and has on both sides of the diametrical rib w the relatively large openings In the pairs of upstanding lugs y formed on the disk close to the rib fw are arranged pintles e forming fulcra for the pivoted valves 2 each in the form of a substantially semi-circular plate having pairs of upstanding lugs 3 penetrated by the pintles and so arranged that when the valve is in the closed position its inner edge 2. underlies and may bear flat against the rib w while its outer edge 22 over-lies and may lie flat against the edge of the disk a at the outer side of the correspending opening In the working stroke of the piston, therefore, the latter will be substantially closed at all points. Upon the piston reaching the end of the working stroke, each valve will yield readily to the pressure of the water below (which is seeking to follow that displaced by the piston) and rem-ain fully open, because the area thereof relatively outward of the pivot e is somewhat greater than that relatively inward of said pivot. This condition will obtain until the pressure on the lower faces of the valves ceases, as when the piston has returned to the starting position and the outflow has stopped, whereupon gravity will return the valves at once to their seats, because even in their limits of opening movement, where they contact with the stem g, the offset relation of their pivots (in the lugs 3) brings the center of gravity of each valve outward of its pivot. Then the lifting means is fully depressed (as in Fig. l) it is desirable that the valve should be partly open, so that the shorter leg of the siphon may be duly supplied with the water necessary to start the siphon. I therefore provide the stops or detents l which are engaged by the under-sides of the valves and tilt them slightly as the disk a approaches its downward limit of movement, suoli stops or detents being angular pins in the present case projecting inwardly from the cylindrical wall of the leg c.

I provide for pivoting the valves 2 in the peculiar manner described, z'. e., by employing the upstanding lugs 3 on each through which the pivoting axis extends, because thereby is obtained in a simple way the tendency of the valves when open to close promptly as soon as the action of gravity prevails; and by arranging each to overlap and underlap the disk at opposite sides of the opening the desired sealing or closing contact with the disk is accomplished in a way at once simple and effective.

The tube f limits the upward movement of the lifting means, it being abutted by the disk u at the end of the lifting stroke.

Any suitable inlet means, such as the nipple 5 having a valve 6 controlled by a float carrying lever 7 all of well-known construction, may be employed.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is l. In combination, a tank and means for effecting the discharge of the tank including a siphon constituting the discharge outlet of the tank, and a piston arranged in the short leg of the siphon, said piston including a stem protruding upwardly through the siphon and a disk attached to the stem and having an aperture at one side of the stem and a valve normally closing said aperture and pivoted on a horizontal axis elevated above the closing portion of and crossing the valve and being thereby adapted to swing to open position and being limited by the stem against open movement past its center of gravity, said valve overlapping the disk at one side, and underlapping the disk at the other side, of the aperture in said disk.

effecting the discharge of the tank including a siphon constituting the discharge outlet of the tank, a piston arranged in the short legv of the siphon, a stem carrying the piston and protruding upwardly through the siphon, said piston including an apertured disk and a valve pivoted on a horizontal axis in the disk and controlling the liquid flow through said aperture, and a stop to engage the under side of 4the valve in the downward movement of the piston, substantially as described.

In testimony whereof I affix my signature in presence of two'witnesses.

JOHN DENTON.

Vitnesses:

JOHN A. HAVILAND, OSCAR BLOCH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C."

2. In combination, a tank and means for 

